Bank of the West Refinance Rates Calculator

A Bank of the West refinance rates calculator cannot provide a current, bank-specific refinance offer: Bank of the West’s banking business became part of BMO in 2023, and refinance pricing depends on the borrower, property, loan details, and lender’s current terms. The calculator below estimates a fixed-rate loan’s monthly payment and total interest from the loan amount, APR, and term; enter a lender’s actual quoted figures for an estimate, not a rate quote or approval decision.

Formula

This calculator applies the standard fixed-rate amortizing-loan payment formula. It assumes equal monthly payments and a constant APR for the full term:

• Monthly payment: PMT = P × r / [1 − (1 + r)⁻ⁿ]
• Total interest: I = PMT × n − P
• Monthly rate: r = APR / 1,200
• Number of payments: n = years × 12

P is the amount refinanced in dollars; APR is the annual percentage rate entered as a percentage, such as 8 for 8%; r is the monthly rate as a decimal; n is the number of monthly payments; PMT is the monthly principal-and-interest payment in dollars; and I is total interest in dollars over the modeled term. The calculator rounds the payment to cents before multiplying by the number of payments to estimate total interest.

Worked Example

Using the default inputs—$20,000, an 8% APR, and five years—the calculation is:

1. Convert the APR to a monthly decimal rate: 8 ÷ 1,200 = 0.0066667.
2. Convert the term to payments: 5 × 12 = 60 months.
3. Substitute into the payment formula: $20,000 × 0.0066667 ÷ [1 − (1.0066667)⁻⁶⁰] = $405.53 per month, rounded to cents.
4. Calculate total interest using the rounded payment: $405.53 × 60 − $20,000 = $4,331.80.

These figures are illustrative arithmetic, not a Bank of the West or BMO quote. The actual amount financed, rate, payment schedule, and charges may differ.

Assumptions

• The interest rate is fixed for the whole modeled term.
• Payments are equal, made monthly, and begin one month after the loan starts.
• Interest compounds monthly using APR divided by 12.
• Fees, taxes, insurance, mortgage insurance, escrow, and any optional products are not included.
• The calculator does not model lender-specific eligibility, rate adjustments, closing costs, or changing rates.

Bank of the West and refinance rates

Bank of the West is now part of BMO. BMO announced its acquisition of Bank of the West’s parent company in December 2021 and completed the transaction on February 1, 2023. As a result, someone searching for a Bank of the West refinance calculator should confirm current mortgage servicing and application information through the official BMO channels or the company currently servicing their loan. A legacy name in a search query does not establish that a particular rate, product, or calculator remains available.

There is no single refinance rate that applies to every borrower. A lender’s quote can depend on details such as the requested loan amount, property, occupancy, loan type, repayment term, and the lender’s evaluation. Rates and fees can change over time. Do not treat an example APR in a calculator as a current rate: obtain the applicable rate, APR, fees, and payment terms directly from the lender.

How to use the estimate for refinancing

For a useful comparison, first identify the proposed new loan’s amount, APR, and term. Use the lender’s quoted figures rather than a rate found in an old advertisement or an unrelated online estimate. The loan amount should reflect what would actually be financed; if eligible costs are being added to the new balance, that can change the payment and total interest.

• Loan amount: Enter the proposed principal, not automatically the original purchase price or current home value.
• APR: Enter the quoted annual percentage rate. Ask how the lender defines and calculates it, and check whether the quote assumes points or other charges.
• Term: Enter the full new repayment term in years. A different term changes both the monthly payment and the number of payments.
• Compare like with like: Run separate estimates for each written scenario, keeping the loan amount and term consistent when you want to isolate the effect of APR.

For example, a lower monthly payment by itself does not show that refinancing costs less overall. Extending repayment over more months can reduce the scheduled payment while increasing the total interest paid. Conversely, this calculator’s total-interest output does not include fees, so it cannot establish the complete cost of a refinance. Review the lender’s written disclosures for the full figures and terms.

What this calculator leaves out

This tool calculates principal-and-interest payments for a simple fixed-rate loan. It does not calculate a break-even date, compare a new loan with the remaining payments on an existing loan, or determine whether a refinance is suitable. Those comparisons require additional information, including existing balance and rate, remaining term, new-loan costs, and the lender’s final terms.

The APR input is treated as the rate used in the payment formula. In a real loan, APR may reflect certain costs in addition to the interest rate, and the lender’s payment calculation and disclosures control. The calculator also does not estimate property taxes, homeowners insurance, escrow deposits, mortgage insurance, prepayment charges, or variable-rate changes. Add those separately when reviewing a complete monthly housing cost or payoff comparison.

Common mistakes include entering 0.08 instead of 8 for an 8% APR, using the home’s value in place of the amount borrowed, and comparing loans with different terms as if only the rate changed. The APR field expects a percentage number, while the formula converts it internally. Results are rounded, so a lender’s payment can differ because of payment dates, rounding conventions, fees, or loan-specific terms.

Frequently Asked Questions

Does Bank of the West still offer refinance rates?
Bank of the West’s banking business was acquired by BMO in 2023. Check BMO’s official information or contact the current loan servicer to confirm which mortgage products or services are available now.

Can this calculator show my actual refinance rate?
No. It computes a payment from the APR you enter; it does not retrieve lender rates, evaluate an application, or provide an offer. Request a current, personalized quote from the lender.

Is the monthly payment the full cost of a mortgage?
No. The estimate covers principal and interest only. Taxes, insurance, mortgage insurance, escrow, fees, and other charges are excluded unless separately included in the amount financed.

Why might my lender’s payment differ from this result?
The lender may use different loan terms, payment dates, rounding, fees, or a balance that differs from your input. Compare the same principal, APR, and term, then use the lender’s disclosure for the exact scheduled payment.

Does a lower payment mean refinancing saves money?
Not necessarily. A longer repayment term can lower the monthly payment while increasing total interest, and upfront costs also matter. This calculator alone does not compare the complete cost of two loans.

This result is an estimate, and the lender’s disclosure gives the exact figures.

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in p | Loan amount | $ | 20000 | 1 | 100000000
in apr | Interest rate (APR) | % | 8 | 0.01 | 100
in yrs | Loan term | years | 5 | 0.0833 | 50
out pmt | Monthly payment | $ | p * (apr / 1200) / (1 - (1 + apr / 1200) ^ -(yrs * 12)) | 2
out int | Total interest | $ | pmt * yrs * 12 - p | 2